VHbb/interface/VHbbNameSpace.h

#include "TLorentzVector.h"
#include "TVector3.h"
#include "TMath.h"

namespace VHbb {

  double deltaPhi(double phi1,double phi2)
  {
    double result = phi1 - phi2;
    while (result > TMath::Pi()) result -= 2*TMath::Pi();
    while (result <= -TMath::Pi()) result += 2*TMath::Pi();
    return result;
  }

  inline double deltaR(double eta1,double phi1,double eta2,double phi2)
    {
      double deta = eta1 - eta2;
      double dphi = deltaPhi(phi1, phi2);
      return TMath::Sqrt(deta*deta + dphi*dphi);
    }


  double Hmass( double V_eta,double V_phi,double V_pt, 
                double hJet1_eta,double hJet1_phi,double hJet1_pt, 
                double hJet2_eta,double hJet2_phi,double hJet2_pt ){
    
    TVector3 V(1,1,1);
    V.SetPtEtaPhi(V_pt,V_eta,V_phi);
    
    TVector3 H1(1,1,1);
    H1.SetPtEtaPhi(hJet1_pt,hJet1_eta,hJet1_phi);
    H1.SetMag(1/sin(H1.Theta()));
    
    TVector3 H2(1,1,1);
    H2.SetPtEtaPhi(hJet2_pt,hJet2_eta,hJet2_phi);
    H2.SetMag(1/sin(H2.Theta()));
    
    TVector3 n1(H1);
    TVector3 n2(H2);
    
    double det= n1.Px() * n2.Py() - n2.Px() * n1.Py();
    
    H1.SetMag( (  - n2.Py() * V.Px() + n2.Px() * V.Py() )  / (sin(n1.Theta()) *det ) );
    H2.SetMag( ( + n1.Py() * V.Px() - n1.Px() * V.Py() )  / (sin(n2.Theta())  *det ) );
    
    double mass=TMath::Sqrt( TMath::Power( (H1.Mag()+H2.Mag()),2 ) - TMath::Power(( ( H1+H2 ).Mag()),2) );
    
    return mass;
    
  }
  
  double Hmass_comb(double hJet1_eta,double hJet1_phi,double hJet1_pt, double hJet1_mass,
                    double hJet2_eta,double hJet2_phi,double hJet2_pt, double hJet2_mass){

    TLorentzVector H1, H2;
    H1.SetPtEtaPhiM(hJet1_pt,hJet1_eta,hJet1_phi, hJet1_mass);;
    H2.SetPtEtaPhiM(hJet2_pt,hJet2_eta,hJet2_phi, hJet2_mass);

    return (H1 + H2).M();

  }

  double Hmass_3j(double h_eta,double h_phi,double h_pt, double h_mass,
                  double aJet_eta,double aJet_phi,double aJet_pt, double aJet_mass){

    TLorentzVector H, H3;
    H.SetPtEtaPhiM( h_pt,h_eta,h_phi, h_mass);;
    H3.SetPtEtaPhiM(aJet_pt,aJet_eta,aJet_phi, aJet_mass);

    return (H + H3).M();


  }
  
  double ANGLELZ(double pt, double eta, double phi, double mass, double pt2, double eta2, double phi2, double mass2){
  TLorentzVector m1, m2, msum;
  m1.SetPtEtaPhiM(pt, eta, phi, mass);
  m2.SetPtEtaPhiM(pt2, eta2, phi2, mass2);
  msum = m1 + m2;

  TVector3 bZ =  msum.BoostVector();

  m1.Boost(-bZ);  
  m2.Boost(-bZ);  

  TVector3 b1;


  if((int) (pt) % 2 == 0)
    b1 =  m1.BoostVector();
  else
    b1 =  m2.BoostVector();

 double cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
 return(cosTheta);
  }


   double ANGLEHB(double pt, double eta, double phi, double e, double pt2, double eta2, double phi2, double e2){
 TLorentzVector m1, m2, msum;
 m1.SetPtEtaPhiE(pt, eta, phi, e);
 m2.SetPtEtaPhiE(pt2, eta2, phi2, e2);
 msum = m1 + m2;

 TVector3 bZ =  msum.BoostVector();

 m1.Boost(-bZ);
 m2.Boost(-bZ);  

 TVector3 b1;

  if((int) (pt) % 2 == 0)
    b1 =  m1.BoostVector();
  else
    b1 =  m2.BoostVector();

 double cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
 return(cosTheta);
   }

   double metCorSysShift(double met, double metphi, int Nvtx, int EVENT_run)
{
    double metx = met * cos(metphi);
    double mety = met * sin(metphi);
    double px = 0.0, py = 0.0;
    if (EVENT_run!=1) {
        //pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_data
        px = +1.68804e-01 + 3.37139e-01*Nvtx;
        py = -1.72555e-01 - 1.79594e-01*Nvtx;
    } else {
        //pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_mc
        px = +2.22335e-02 - 6.59183e-02*Nvtx;
        py = +1.52720e-01 - 1.28052e-01*Nvtx;
    }
    metx -= px;
    mety -= py;
    return std::sqrt(metx*metx + mety*mety);
}

    double metphiCorSysShift(double met, double metphi, int Nvtx, int EVENT_run)
{
    double metx = met * cos(metphi);
    double mety = met * sin(metphi);
    double px = 0.0, py = 0.0;
    if (EVENT_run!=1) {

        //pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_data
        px = +1.68804e-01 + 3.37139e-01*Nvtx;
        py = -1.72555e-01 - 1.79594e-01*Nvtx;
    } else {
        //pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_mc
        px = +2.22335e-02 - 6.59183e-02*Nvtx;
        py = +1.52720e-01 - 1.28052e-01*Nvtx;
    }
    metx -= px;
    mety -= py;
    if (metx == 0.0 && mety == 0.0)
        return 0.0;

    double phi1 = std::atan2(mety,metx);
    double phi2 = std::atan2(mety,metx)-2.0*M_PI;
    if (std::abs(phi1-metphi) < std::abs(phi2-metphi)+0.5*M_PI)
        return phi1;
    else
        return phi2;
}

double resolutionBias(double eta)
{
// return 0;//Nominal!
 if(eta< 1.1) return 0.05;
 if(eta< 2.5) return 0.10;
 if(eta< 5) return 0.30;
 return 0;
}

double evalJERBias( double ptreco, double ptgen, double eta1){
  double eta = fabs(eta1);
  double cor =1;   
  if ((fabs(ptreco - ptgen)/ ptreco)<0.5) { //Limit the effect to the core 
     cor = (ptreco +resolutionBias(eta) *(ptreco-ptgen))/ptreco;   
  }
  return ptreco*cor;
}

double evalEt( double pt, double eta, double phi, double e){
  TLorentzVector j;
  j.SetPtEtaPhiE(pt,eta,phi, e );
  return j.Et(); 

}

double evalMt( double pt, double eta, double phi, double e){
  TLorentzVector j;
  j.SetPtEtaPhiE(pt,eta,phi, e );
  return j.Mt(); 

}

}

Revision:	1.5
Committed:	Thu Jan 17 16:32:37 2013 UTC (12 years, 3 months ago) by nmohr
Content type:	text/plain
Branch:	MAIN
CVS Tags:	workingVersionAfterHCP
Changes since 1.4:	+81 -4 lines
Log Message:	Add helpers
#	User	Rev	Content
1	bortigno	1.2	#include "TLorentzVector.h"
2			#include "TVector3.h"
3	bortigno	1.1	#include "TMath.h"
4
5			namespace VHbb {
6
7			double deltaPhi(double phi1,double phi2)
8			{
9			double result = phi1 - phi2;
10			while (result > TMath::Pi()) result -= 2*TMath::Pi();
11			while (result <= -TMath::Pi()) result += 2*TMath::Pi();
12			return result;
13			}
14
15			inline double deltaR(double eta1,double phi1,double eta2,double phi2)
16			{
17			double deta = eta1 - eta2;
18			double dphi = deltaPhi(phi1, phi2);
19	bortigno	1.3	return TMath::Sqrt(detadeta + dphidphi);
20	bortigno	1.1	}
21	bortigno	1.2
22
23			double Hmass( double V_eta,double V_phi,double V_pt,
24			double hJet1_eta,double hJet1_phi,double hJet1_pt,
25			double hJet2_eta,double hJet2_phi,double hJet2_pt ){
26
27			TVector3 V(1,1,1);
28			V.SetPtEtaPhi(V_pt,V_eta,V_phi);
29
30			TVector3 H1(1,1,1);
31			H1.SetPtEtaPhi(hJet1_pt,hJet1_eta,hJet1_phi);
32			H1.SetMag(1/sin(H1.Theta()));
33
34			TVector3 H2(1,1,1);
35			H2.SetPtEtaPhi(hJet2_pt,hJet2_eta,hJet2_phi);
36			H2.SetMag(1/sin(H2.Theta()));
37
38			TVector3 n1(H1);
39			TVector3 n2(H2);
40
41	nmohr	1.5	double det= n1.Px() * n2.Py() - n2.Px() * n1.Py();
42	bortigno	1.2
43			H1.SetMag( ( - n2.Py() * V.Px() + n2.Px() * V.Py() ) / (sin(n1.Theta()) *det ) );
44			H2.SetMag( ( + n1.Py() * V.Px() - n1.Px() * V.Py() ) / (sin(n2.Theta()) *det ) );
45
46	nmohr	1.5	double mass=TMath::Sqrt( TMath::Power( (H1.Mag()+H2.Mag()),2 ) - TMath::Power(( ( H1+H2 ).Mag()),2) );
47	bortigno	1.2
48			return mass;
49
50			}
51
52			double Hmass_comb(double hJet1_eta,double hJet1_phi,double hJet1_pt, double hJet1_mass,
53			double hJet2_eta,double hJet2_phi,double hJet2_pt, double hJet2_mass){
54
55			TLorentzVector H1, H2;
56			H1.SetPtEtaPhiM(hJet1_pt,hJet1_eta,hJet1_phi, hJet1_mass);;
57			H2.SetPtEtaPhiM(hJet2_pt,hJet2_eta,hJet2_phi, hJet2_mass);
58
59			return (H1 + H2).M();
60
61			}
62
63			double Hmass_3j(double h_eta,double h_phi,double h_pt, double h_mass,
64			double aJet_eta,double aJet_phi,double aJet_pt, double aJet_mass){
65
66			TLorentzVector H, H3;
67			H.SetPtEtaPhiM( h_pt,h_eta,h_phi, h_mass);;
68			H3.SetPtEtaPhiM(aJet_pt,aJet_eta,aJet_phi, aJet_mass);
69
70			return (H + H3).M();
71
72
73			}
74	nmohr	1.4
75			double ANGLELZ(double pt, double eta, double phi, double mass, double pt2, double eta2, double phi2, double mass2){
76			TLorentzVector m1, m2, msum;
77			m1.SetPtEtaPhiM(pt, eta, phi, mass);
78			m2.SetPtEtaPhiM(pt2, eta2, phi2, mass2);
79			msum = m1 + m2;
80
81			TVector3 bZ = msum.BoostVector();
82
83			m1.Boost(-bZ);
84			m2.Boost(-bZ);
85
86			TVector3 b1;
87
88
89			if((int) (pt) % 2 == 0)
90			b1 = m1.BoostVector();
91			else
92			b1 = m2.BoostVector();
93
94	nmohr	1.5	double cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
95	nmohr	1.4	return(cosTheta);
96			}
97
98
99			double ANGLEHB(double pt, double eta, double phi, double e, double pt2, double eta2, double phi2, double e2){
100			TLorentzVector m1, m2, msum;
101			m1.SetPtEtaPhiE(pt, eta, phi, e);
102			m2.SetPtEtaPhiE(pt2, eta2, phi2, e2);
103			msum = m1 + m2;
104
105			TVector3 bZ = msum.BoostVector();
106
107			m1.Boost(-bZ);
108			m2.Boost(-bZ);
109
110			TVector3 b1;
111
112			if((int) (pt) % 2 == 0)
113			b1 = m1.BoostVector();
114			else
115			b1 = m2.BoostVector();
116
117	nmohr	1.5	double cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
118	nmohr	1.4	return(cosTheta);
119			}
120
121	nmohr	1.5	double metCorSysShift(double met, double metphi, int Nvtx, int EVENT_run)
122			{
123			double metx = met * cos(metphi);
124			double mety = met * sin(metphi);
125			double px = 0.0, py = 0.0;
126			if (EVENT_run!=1) {
127			//pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_data
128			px = +1.68804e-01 + 3.37139e-01*Nvtx;
129			py = -1.72555e-01 - 1.79594e-01*Nvtx;
130			} else {
131			//pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_mc
132			px = +2.22335e-02 - 6.59183e-02*Nvtx;
133			py = +1.52720e-01 - 1.28052e-01*Nvtx;
134			}
135			metx -= px;
136			mety -= py;
137			return std::sqrt(metxmetx + metymety);
138			}
139
140			double metphiCorSysShift(double met, double metphi, int Nvtx, int EVENT_run)
141			{
142			double metx = met * cos(metphi);
143			double mety = met * sin(metphi);
144			double px = 0.0, py = 0.0;
145			if (EVENT_run!=1) {
146
147			//pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_data
148			px = +1.68804e-01 + 3.37139e-01*Nvtx;
149			py = -1.72555e-01 - 1.79594e-01*Nvtx;
150			} else {
151			//pfMEtSysShiftCorrParameters_2012runAplusBvsNvtx_mc
152			px = +2.22335e-02 - 6.59183e-02*Nvtx;
153			py = +1.52720e-01 - 1.28052e-01*Nvtx;
154			}
155			metx -= px;
156			mety -= py;
157			if (metx == 0.0 && mety == 0.0)
158			return 0.0;
159
160			double phi1 = std::atan2(mety,metx);
161			double phi2 = std::atan2(mety,metx)-2.0*M_PI;
162			if (std::abs(phi1-metphi) < std::abs(phi2-metphi)+0.5*M_PI)
163			return phi1;
164			else
165			return phi2;
166			}
167	bortigno	1.2
168	nmohr	1.5	double resolutionBias(double eta)
169			{
170			// return 0;//Nominal!
171			if(eta< 1.1) return 0.05;
172			if(eta< 2.5) return 0.10;
173			if(eta< 5) return 0.30;
174			return 0;
175			}
176
177			double evalJERBias( double ptreco, double ptgen, double eta1){
178			double eta = fabs(eta1);
179			double cor =1;
180			if ((fabs(ptreco - ptgen)/ ptreco)<0.5) { //Limit the effect to the core
181			cor = (ptreco +resolutionBias(eta) *(ptreco-ptgen))/ptreco;
182			}
183			return ptreco*cor;
184			}
185
186			double evalEt( double pt, double eta, double phi, double e){
187			TLorentzVector j;
188			j.SetPtEtaPhiE(pt,eta,phi, e );
189			return j.Et();
190
191			}
192
193			double evalMt( double pt, double eta, double phi, double e){
194			TLorentzVector j;
195			j.SetPtEtaPhiE(pt,eta,phi, e );
196			return j.Mt();
197
198			}
199	bortigno	1.2
200	bortigno	1.1	}
201